Basically, a facial hair feature that resembles a Hitler mustache that migrated south, but otherwise having little to no relation to the genocidalfascistdictator, and not at all necessarily bad or evil. Opinions upon the soul patch can vary widely from person to person. Contrary to popular belief, it doesn't necessarily have to mean or indicate anything.

A small tuft of male facial hair located in the center below the lower lip; universally identifying the wearer as a complete douchebag and sexually impotent unless the wearer is a virtuoso heterosexual jazz musician.

Check out Ryan's new soul patch. He must have totally given up on ever getting laid by a woman again!

Verb; An intentionally ambiguous term implying an unknown or unforeseen threat, promise, or praise; spoken in a spirit of complete and purposeful ambivalence which will leave the implied act completely to the imagination.

1.) As a threat: "Do that again, dude, and I swear I will soul patch your ass."
2.) As a vague, neutral comment or invitation: "Want to soul patch later?"
3.) As a prop: "dude, that was soul patch!"

Note: this term is best used with completely mixed emotional overtones, all the better to confuse the intended audience. For Instance, use example 2 in the same tone you would say example 1. Better: example 1 in the tone of example 3. Hilarity ensues, guaranteed.